Boot



FIG. 1 is a perspective view of a boot showing my new design;

FIG. 2 is a right side view thereof; and,

FIG. 3 is a left side view thereof.

The broken line showing of the heel, upper portion, and toe is for illustrative purposes only and forms no part of the claimed design. The broken line showing which bisects the boot at the foot and leg portions illustrates a boundary between claimed and unclaimed matter only and forms no part of the claimed design. 

The ornamental design for a boot, as shown and described. 